Christian Brauner 47291baa8d namei: make permission helpers idmapped mount aware ... The two helpers inode_permission() and generic_permission() are used by the vfs to perform basic permission checking by verifying that the caller is privileged over an inode. In order to handle idmapped mounts we extend the two helpers with an additional user namespace argument. On idmapped mounts the two helpers will make sure to map the inode according to the mount's user namespace and then peform identical permission checks to inode_permission() and generic_permission(). If the initial user namespace is passed nothing changes so non-idmapped mounts will see identical behavior as before. Link: https://lore.kernel.org/r/20210121131959.646623-6-christian.brauner@ubuntu.com Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: James Morris <jamorris@linux.microsoft.com> Acked-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>		2021-01-24 14:27:16 +01:00
..
preload	bpf: BPF_PRELOAD depends on BPF_SYSCALL	2020-11-05 18:49:29 -08:00
arraymap.c	bpf: Eliminate rlimit-based memory accounting for arraymap maps	2020-12-02 18:32:46 -08:00
bpf_inode_storage.c	bpf: Allow specifying a BTF ID per argument in function protos	2020-09-21 15:00:40 -07:00
bpf_iter.c	bpf: Permit cond_resched for some iterators	2020-10-28 14:54:31 -07:00
bpf_local_storage.c	bpf: Eliminate rlimit-based memory accounting for bpf local storage maps	2020-12-02 18:32:47 -08:00
bpf_lru_list.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
bpf_lru_list.h	bpf: Fix a typo "inacitve" -> "inactive"	2020-04-06 21:54:10 +02:00
bpf_lsm.c	bpf: Add a BPF helper for getting the IMA hash of an inode	2020-11-26 00:04:04 +01:00
bpf_struct_ops_types.h	bpf: tcp: Support tcp_congestion_ops in bpf	2020-01-09 08:46:18 -08:00
bpf_struct_ops.c	bpf: Eliminate rlimit-based memory accounting for bpf_struct_ops maps	2020-12-02 18:32:46 -08:00
bpf_task_storage.c	bpf: Fix NULL dereference in bpf_task_storage	2020-11-11 18:14:49 -08:00
btf.c	bpf: Allow to specify kernel module BTFs when attaching BPF programs	2020-12-03 17:38:21 -08:00
cgroup.c	Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-22 09:59:21 -07:00
core.c	bpf: Eliminate rlimit-based memory accounting for bpf progs	2020-12-02 18:32:47 -08:00
cpumap.c	bpf: Eliminate rlimit-based memory accounting for cpumap maps	2020-12-02 18:32:46 -08:00
devmap.c	bpf: Eliminate rlimit-based memory accounting for devmap maps	2020-12-02 18:32:46 -08:00
disasm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
disasm.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
dispatcher.c	bpf: Remove bpf_image tree	2020-03-13 12:49:52 -07:00
hashtab.c	bpf: Add schedule point in htab_init_buckets()	2020-12-22 00:14:31 +01:00
helpers.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-12-11 22:29:38 -08:00
inode.c	namei: make permission helpers idmapped mount aware	2021-01-24 14:27:16 +01:00
local_storage.c	bpf: Eliminate rlimit-based memory accounting for cgroup storage maps	2020-12-02 18:32:46 -08:00
lpm_trie.c	bpf: Eliminate rlimit-based memory accounting for lpm_trie maps	2020-12-02 18:32:46 -08:00
Makefile	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-11-14 09:13:41 -08:00
map_in_map.c	bpf: Relax max_entries check for most of the inner map types	2020-08-28 15:41:30 +02:00
map_in_map.h	bpf: Add map_meta_equal map ops	2020-08-28 15:41:30 +02:00
map_iter.c	bpf: Implement link_query callbacks in map element iterators	2020-08-21 14:01:39 -07:00
net_namespace.c	bpf: Add support for forced LINK_DETACH command	2020-08-01 20:38:28 -07:00
offload.c	bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill	2020-02-17 16:53:49 +01:00
percpu_freelist.c	bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI	2020-10-06 00:04:11 +02:00
percpu_freelist.h	bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI	2020-10-06 00:04:11 +02:00
prog_iter.c	bpf: Refactor bpf_iter_reg to have separate seq_info member	2020-07-25 20:16:32 -07:00
queue_stack_maps.c	bpf: Eliminate rlimit-based memory accounting for queue_stack_maps maps	2020-12-02 18:32:46 -08:00
reuseport_array.c	bpf: Eliminate rlimit-based memory accounting for reuseport_array maps	2020-12-02 18:32:47 -08:00
ringbuf.c	bpf: Eliminate rlimit-based memory accounting for bpf ringbuffer	2020-12-02 18:32:47 -08:00
stackmap.c	Networking updates for 5.11	2020-12-15 13:22:29 -08:00
syscall.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf	2020-12-28 15:26:11 -08:00
sysfs_btf.c	bpf: Load and verify kernel module BTFs	2020-11-10 15:25:53 -08:00
task_iter.c	bpf: Fix a task_iter bug caused by a merge conflict resolution	2021-01-03 01:41:32 +01:00
tnum.c	bpf: Verifier, do explicit ALU32 bounds tracking	2020-03-30 14:59:53 -07:00
trampoline.c	bpf: Move prog->aux->linked_prog and trampoline into bpf_link on attach	2020-09-29 13:09:23 -07:00
verifier.c	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-12-14 15:34:36 -08:00